package weatherstation;

import java.util.ArrayList;

public class WeatherData implements Subject {

    private ArrayList observers;
    private float temp;
    private float humiduty;
    private float pressure;

    public WeatherData() {
        observers = new ArrayList();
    }

    @Override
    public void registerObserver(Observer o) {
        observers.add(o);
    }

    @Override
    public void removeObserver(Observer o) {
        int i = observers.indexOf(o);
        if (i >= 0) {
            observers.remove(i);
        }
    }

    @Override
    public void notifyObservers() {
        for (int i = 0; i < observers.size(); i++) {
            Observer observer = (Observer) observers.get(i);
            observer.update(temp, humiduty, pressure);
        }
    }

    public void measurementChanged() {
        notifyObservers();

    }

    public void setMeasurements(float temperature, float humiduty, float pressure) {
        this.temp = temperature;
        this.humiduty = humiduty;
        this.pressure = pressure;
        measurementChanged();
    }
}
